@darthdinosaur I had a similar thing happen to me, but the bf was the issue.
I left him and met someone else not long after.
My ex was so angry with it all, he went around my whole friendship group, and family, getting closer and closer to certain people who let him..
He ended up sleeping with a few of my female friends, and turning a few male friends 'against me', keeping in touch closely with a few members of my family.
Few friends saw straight through him and told him thier loyalties lay with me.
I did nothing except leave the relationship, he spent years obsessively trying to find out about my life. Even contacting my partner (we are still together, years on) and putting a huge strain on our relationship.
The whole thing was very damaging- I ended up loosing a very close friend, who I loved, after I found out she had been in a sexual relation with him, whilst I would pour my heart out to her about the hurt he was causing in my life.
Even more hurtful was the fact the information came from someone who didn't like me, and was using it to hurt me.
...and you guessed it, the information about my best friend had come from the ex, to the person who disliked me, who told me.
He was so toxic, he was not only using women to try and hurt me, he was also then repeating it to someone who took pleasure from my hurt too, knowing it would likely get back to me.
I think he managed sexual/emotional relationships with about 5 "close friends" that I know of... there may be more.
He was very charming, charismatic and good looking, however I still don't know how he managed it. I've not been able to face these people since. The stupidity and betrayal is too much.
In the end he settled down with someone a few friend referred to a "UltimateBlends #2"
We had the same appearance -and seemingly the same interests and hobbies. Annoyingly people seemed think I need to know about it/see pictures.
I didnt. I wanted a total black out on him. I think if I ever bumped into him again, I would want to rip him to shreds. Instead I like to think I would hold my head high and walk on by.
It's a horrible situation to have someone obsessively try and ruin life for you.
I lost some "nice" friends because of him.